Pipe pusher



J W. ECKLES July 4, 1933.

PTPE PUSHEIR 2 Sheets-Sheet i Filed July 29, 1952 July 4, 1933. w ECKLES 1,916,466

PIPE PUSHER 2 Sheets-Sheet 2 Filed July 29, 1932 (7076M WLZ'ZZ w this purpose but they have not been satisfac for gripplng eratlon.

- 'ferredformof the inventio V Patenteddulyh lg 1933. V

. JoiiNwlE KLleafln SANKNTONIQTEXASZ:

v PIPE IPUSI-IER p v i This invention relates to amachine for v pushing service pipes under sidewalks, street, tracks,'etc. I i y i Various machines. have; been devised for tory because the'slightest wear has made them unfit for use because it hasnot' been 'possibl'e to hold the pipe iii-the proper direction onto. maintain the machine" in correct'position, r

- 1;; 4 'It is an object ofthe present invention to i provide a simple and compact machine which will standup under excessive use and wear and atall times properly hold and guide a pipe whilebeing pushed through the ground.

Another object is to provide efiicient means the pipe during the pushingopa With the foregoing andptherobjeCts in view which will" appear as the description proceeds, the invention resides in the-combi j nation and arrangement of parts and inthe 7 details of construction hereinafter-described and claimed,it being understood that changes 7 in theprecise embodiment of the invention herein disclosed. maybe "inadewi thin the" {scope of what is claimed'without d from the spirit of the invention'.

n the accompanyingdrawings the preis n'has'been shown.)

eparting In said drawings: 7 I v V Figure l is a vertical'longitudinal section through the machine, the same being shown 1 Figure 2 isa plan view of the machine.

Figure 3 is a section on line 3+3,:Figurel. Figure 4 is a section on line 4-4:, Figure 1. Referring to the. figures by characters of reference,'1designates a pedestal of steelor other suitable material havingoppositel-y eX- tended base flanges 2,one;of which" can be a shaft 11 whichis journaledfin plates?) and extends laterally"therebeyond." 'Anysuit'able r I 1neans-,-such as a crank 12 or a hand 'wheel' can be connected to, either or; both "ends of" I I between guides-20 in yoke 16' and ha's'an' adthe yoke.

; able'in the 1guide,"a rack thereon, gearing'for" actuatin 2. A'pipe-pushing in v 'bulfif guid a pedestal therefor having 311-.-

[ application filerllulyt29,- 1932I Seri a1 110,626,106.

extending"longitudinally or the tube and; movable inslot 4:, A gear 9 is urnale-d beu tween platesf5 and mesheswithrack 8i It also meshes with a smaller gear 10 securedto,

the shaft rotating it. p A reversable pawl 13 is mountedbetween theplatesge and isadapted 'to engage'the" rack thereo fithepawl canbe shifted readily.-

head15 is screwed on or 'otherwise se- Y cured to. one'endoit tube andlhas'an in-; 4

tegr'allyoke 16 the rop'en end of which is bridged by a block 17 having a stationary; v e

vise jaw 18, A movable'jaw 19 is mounted justing. screw swiveled thereto and engaging In practice an excavation-E made Where} the pipe is to be actuated, and the machine-is the wall of the recess, asshown. The'pipeP is inserted endifirst'into tube? and a bit B a. v

is placed on the front-or advancing end of the. pipe. .Tube 7 is retracted withinguide 3;and the pipe is then'gripped between'jawsv7 l8 and '19. 'By then rotating the gears the pipe will be pushed forw'ardly, the ,pawl 13 5 cooperating withthe rack8,to prevent retroigrademovement. The pawl is thenv reversed, zthe aws dls'engagedfrointhe'plpe,the'guide tube/7 again retracted 'an'd'theforegoingOp V eration repeated: to again advance the-pipea b Whatisclaimed is:

, 1. A pipe-pushing machi neincludingla-tu V bularguide, ,a pedestalthereforhaving'an-T- choring means, a tubular Vpipe'holder slidg therajck, and pipe+gripping means int-beholder. I r

achine including a tuchoring means, a tubular pipe holder. slid-. 10

able in the guide, a rack thereon, gearing for :to hold it against retrogrademove 2 'mentLj Tl1is ,.-pawlhas a handle 14 at the; f outer side of one oftlie' plates 5 and by means 65 r set up ina recess R'formedin the bottomof Q the excavation." One-flange?) will pressinto a .r l

a yoke on the holder, 6. fixed jaw therein, and a movable j aw in the yoke; said jaws co-operating to grip a pipe projecting from the holder. 7 1

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.

JOHN W. EGKLES. 

